project_telephony/lib/mainProvider.dart

import 'dart:io';

import 'package:call_log/call_log.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/services.dart';
import 'package:telephony/telephony.dart';

class MainProvider extends ChangeNotifier {
  final telephony = Telephony.instance;
  String? st, data, num;
  int flag = 0;
  String? phoneNum;

  callState() async {
    CallState state = await telephony.callState;
    transState(state.name);
    notifyListeners();
  }

  @override
  void addListener(VoidCallback listener) {
    super.addListener(listener);
    callState();
  }

  transState(String? callState) async {
    if (callState == "IDLE") {
      if (flag != 0) {
        await getNum();
        telephony.sendSms(to: phoneNum!, message: "发送短信内容",isMultipart:true,);
        flag = 0;
      }
    } else if (callState == "RINGING") {
      flag++;
    } else if (callState == "OFFHOOK") {
      flag++;
    }
  }

  getNum() async {
    final Iterable<CallLogEntry> result = await CallLog.query();
    phoneNum = result.first.number;
  }
}